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Finding the Fourth Proportional to 156,988.60, 235,482.90 and 113,029.90

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Solution

The fourth proportional to 156,988.60, 235,482.90 and 113,029.90 is: 169,544.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,988.60 : 235,482.90 = 113,029.90 : x
  2. Step 2: Convert to fraction form
    156,988.60/235,482.90 = 113,029.90/x
  3. Step 3: Cross multiply
    156,988.60x = 235,482.90 × 113,029.90
  4. Step 4: Simplify right side
    156,988.60x = 26,616,608,638.71
  5. Step 5: Solve for x
    x = 26,616,608,638.71/156,988.60
  6. Step 6: Final answer
    x = 169,544.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.